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Elza [17]
3 years ago
13

At 101.3 kPa and 298 K, which element could this diagram represent

Chemistry
1 answer:
jonny [76]3 years ago
4 0
The element is Ag, which is silver. 

<em>Hope this helped and Happy New Year! :)</em>
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A 845 mL NaCl solution is diluted to a volume of 1.19 L and a concentration of 6.00 M . What was the initial concentration? Expr
marysya [2.9K]

The initial concentration was 8.45M

Step 1: Given data

Initial concentration (C₁): ?

Initial volume (V₁): 635 mL = 0.845 L

Final concentration (C₂): 6.00 M

Final volume (V₂): 1.19 L

Step 2: Calculate the initial concentration

We have a concentrated NaCl solution and we want to prepare a diluted one. We will use the dilution rule.

C₁ × V₁ = C₂ × V₂

C₁ = C₂ × V₂  / V₁

C₁ = 6.00 M × 1.19 L  / 0.845 L

C₁ = 8.45 M

Thus, The initial concentration was 8.45M

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7 0
2 years ago
Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface which
sergij07 [2.7K]

Answer:

convection

Explanation:

7 0
3 years ago
Read 2 more answers
What is the formula mass (molar mass) of sucrose (C12H22O11)?​
Gnesinka [82]
342.3 g/mol

11 times 16
22 times 1
12 times 12
and then add them together
6 0
3 years ago
A closed container is filled with oxygen. The pressure in the container is 245 kPa . What is the pressure in millimeters of merc
Zanzabum

Answer:

1837.65 mmHg is the pressure in millimeters of mercury.

Explanation:

The expression for the conversion of Pressure (kPa)  to pressure (mmHg) is shown below as:-

Pressure (kPa) = 7.501 x Pressure (mmHg)

The pressure value given =  245 kPa

It can be expressed in millimeters of mercury as:-

Pressure = 7.501 x 245 mmHg = 1837.65 mmHg

<u>1837.65 mmHg is the pressure in millimeters of mercury.</u>

7 0
4 years ago
There are approximately 2 × 1022 molecules and atoms in each breath we take and the concentration of CO in the air is approximat
adoni [48]

Answer:

1.8x10¹⁷ molecules of CO are in each breath we take

Explanation:

Parts per million, ppm, is an unit of concentration in chemistry used for very diluted solutions.

<em>A 9ppm of X in a solution means in 1 million of molecules (1x10⁶) you have only 9 molecules of X.</em>

In a breath we have 2x10²² molecules and 9 ppm are CO. Thus, CO molecules in each breath are:

2x10²² molecules × (9 molecules CO / 1x10⁶ molecules) =

<h3>1.8x10¹⁷ molecules of CO are in each breath we take</h3>
6 0
3 years ago
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